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Gigabar spherical shock generation on the OMEGA laser.
Nora, R; Theobald, W; Betti, R; Marshall, F J; Michel, D T; Seka, W; Yaakobi, B; Lafon, M; Stoeckl, C; Delettrez, J; Solodov, A A; Casner, A; Reverdin, C; Ribeyre, X; Vallet, A; Peebles, J; Beg, F N; Wei, M S.
Afiliação
  • Nora R; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA and Fusion Science Center, University of Rochester, Rochester, New York 14623, USA and Department of Physics and Astronomy and/or Mechanical Engineering, University of Rochester, Rochester,
  • Theobald W; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Betti R; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA and Fusion Science Center, University of Rochester, Rochester, New York 14623, USA and Department of Physics and Astronomy and/or Mechanical Engineering, University of Rochester, Rochester,
  • Marshall FJ; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Michel DT; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Seka W; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Yaakobi B; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Lafon M; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Stoeckl C; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Delettrez J; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Solodov AA; Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
  • Casner A; CEA, DAM, DIF, F-91297 Arpajon, France.
  • Reverdin C; CEA, DAM, DIF, F-91297 Arpajon, France.
  • Ribeyre X; Université de Bordeaux-CNRS-CEA, CELIA (Centre Lasers Intenses et Applications) UMR 5107 F-33400 Talence, France.
  • Vallet A; Université de Bordeaux-CNRS-CEA, CELIA (Centre Lasers Intenses et Applications) UMR 5107 F-33400 Talence, France.
  • Peebles J; University of California, La Jolla, California 92093, USA.
  • Beg FN; Fusion Science Center, University of Rochester, Rochester, New York 14623, USA and University of California, La Jolla, California 92093, USA.
  • Wei MS; Fusion Science Center, University of Rochester, Rochester, New York 14623, USA and General Atomics, San Diego, California 92121, USA.
Phys Rev Lett ; 114(4): 045001, 2015 Jan 30.
Article em En | MEDLINE | ID: mdl-25679896
ABSTRACT
This Letter presents the first experimental demonstration of the capability to launch shocks of several-hundred Mbar in spherical targets--a milestone for shock ignition [R. Betti et al., Phys. Rev. Lett. 98, 155001 (2007)]. Using the temporal delay between the launching of the strong shock at the outer surface of the spherical target and the time when the shock converges at the center, the shock-launching pressure can be inferred using radiation-hydrodynamic simulations. Peak ablation pressures exceeding 300 Mbar are inferred at absorbed laser intensities of ∼3×10(15) W/cm2. The shock strength is shown to be significantly enhanced by the coupling of suprathermal electrons with a total converted energy of up to 8% of the incident laser energy. At the end of the laser pulse, the shock pressure is estimated to exceed ∼1 Gbar because of convergence effects.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2015 Tipo de documento: Article
Buscar no Google
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2015 Tipo de documento: Article